/*
 * Copyright (C) 2014 Tolstykh Vladislav
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

package lib.scripture;

import java.util.Enumeration;
import java.util.Vector;

/**
 * Наполнение книги.
 * @author Толстых Владислав
 */
public class Content implements Enumeration<Chapter>{
    private Vector<Chapter> chapters;
    private int enumeration;
    
    /**
     * Новая модель контента.
     */
    public Content() {
        chapters = new Vector();
        enumeration = -1;
    }
    
    /**
     * Всего глав книги. 
     * @return количество глав
     */
    public int size(){
        return chapters.size();
    }
    
    /**
     * Получить главу книги
     * @param id номер главы начиная с 0
     * @return глава книги целиком
     */
    public Chapter chaptAt(int id){
        return chapters.get(id);
    }
    /**
     * Добавить главу
     * @param chap новая глава
     */
    void add(Chapter chap){
        chapters.add(chap);
    }

    @Override
    public boolean hasMoreElements() {
        return enumeration < size()-1;
    }

    @Override
    public Chapter nextElement() {
        enumeration++;
        return chaptAt(enumeration);
    }
}
